Platoon Lane Change Sequencing in Dense Adjacent Traffic
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Solution Overview
Problem
Current Cooperative Adaptive Cruise Control (CACC) systems face challenges in safely executing lane change maneuvers for platooning vehicles, particularly in dense traffic, where non-cooperating vehicles in adjacent lanes can prevent successful lane changes.
Innovation Solution
A method for lane change involving vehicles traveling in a row, where the first vehicle changes lanes and positions itself to create space for the second vehicle, allowing it to safely change lanes by using V2V communication and sensor data to determine safe positions and avoid obstacles, potentially with automatic lateral control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the last vehicle of the platoon enters the other lane first, then the vehicles of the platoon can change lanes in sequence, but a non-platoon vehicle may overtake the last vehicle and remain in the other lane, preventing the next platooning vehicle from changing lane
Solution Approach 1:
The first vehicle performs a preliminary action by changing lanes and positioning itself behind the second vehicle before the second vehicle changes lanes. This preliminary positioning ensures that when the second vehicle changes lanes, there is already a vehicle (the first vehicle) in the target lane that can block non-platoon vehicles from occupying the space needed by the second vehicle.
Solution Approach 2:
The first vehicle performs a preliminary anti-action by positioning itself in the target lane to prevent non-platoon vehicles from overtaking and blocking the lane change path of subsequent platoon vehicles. This preemptive blocking action counteracts the potential harmful effect of non-cooperating vehicles.
2Loss of energy
If vehicles maintain short distances for platooning, then fuel efficiency improves due to reduced air-drag, but the risk of collision increases during lane change maneuvers
Solution Approach 1:
The system performs preliminary actions by having the first vehicle change lanes and position itself behind the second vehicle before the second vehicle initiates its lane change. This preliminary positioning creates a controlled spatial arrangement that allows subsequent vehicles to change lanes safely even when maintaining short platoon distances.
Solution Approach 2:
The control units of the platooning vehicles communicate with each other to coordinate lane change maneuvers. The system uses feedback from the positions and actions of platoon members to adjust the timing and positioning of subsequent lane changes, ensuring safe execution despite short inter-vehicle distances.
Data Source
AI summary
The invention relates to a method for a lane change of a plurality of vehicles (1-3) on a multi-lane road, the method comprising—controlling the vehicles to travel in a row in a first lane (L1), with a first of the vehicles (1) in front of a second of the vehicles (2), —thereafter controlling the first vehicle (1) so as to change lane to a second lane (L2) adjacent to the first lane (L1), —thereafter positioning the first vehicle (1) in a first position (P1) in the second lane (L2), and positioning the second vehicle (2) in a second position (P2) in the first lane (L1), the first position (P1) being less advanced in the direction of travel (M) than the second position (P2), and—thereafter controlling the second vehicle (2) so as to change lane to the second lane (L2), and thereby move in front of the first vehicle (1).